Automatic train-stop.



H. WILSON.

AUTOMATIC TRAIN STOP.

APPLICATION FILED APR. 17. me.

1 29,8%6 Patented June 12, 1917.

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H. WILSON.

AUTOMATIC TRAIN STOP.

APPLICATION FILED APR-17,1916.

I Patented J 11119 12, 1917.

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HARRY Wilson, on sr. HELENS, oaneon.

AUTOMATIC TRAIN-STOP.

Specification of Letters Patent.

Patented June 12, 1917.

Application filed April 17', 1916. Serial No. 91,676.

To all whom it may concern:

Be it known that I, HARRY WILSON, a citizen of the United Helens, in the county of Columbia and State of Oregon, have invented new and useful Improvements in Automatic.Train-Stops, of which the following is a specification.

This invention relates to an automatic train stop and has for its primary object to so construct and associate the elements that the same can be readily thrown to an opera tive position irrespective of climatic conditions.

An object of the invention is to provide means for throwing certain elements to an operative position so as to engage train carried mechanism and at the same time pre vent lateral play of the elements. D

Another object of the invention is the novel manner of connecting the rods together so that there will practically be no binding action between and caused by lodgment of foreign matter between the rods at their point of connection.

The invention will be better understood from the following detailed description taken in connection with the accompanying drawings wherein a preferred embodiment is illustrated and the features of novelty including all the above mentioned and various others will be thereafter pointed out in the appended claims.

In the drawings:

Figure l is a side elevation of a locomo tive showing the cooperation between the locomotive carried mechanism and the track mechanism.

Fig. 2 is a cross-sectional view track apparatus.

Fig. 3 is a detailed sectional view of the track apparatus. I

Fig. 4 is a cross-sectional view of the track showing the track apparatus.

Fig. 5 is a diagrammatic view of the entire system.

Fig. 6-is a diagrammatic view of a. modi fied form of the apparatus.

Referring to the drawings the numeral 1 designates a trip pivotally mounted on the body of the locomotive with one end depending to engage the track apparatus and the other end pivotally connected to a rod 2 having mounted thereon valves 3 and 4 arranged respectively in an air pipe 5 connected with the train line and a steam pipe 6., in this particular instance beingutilized through the States, residing at St.

to convey steam from the steam dome to the engine cylinders. The trip 1 is formed with a keeper 7 arranged to cooperate with a latch 8 which is in turn thrown to an inactive position manually by means of a link mechanism 9. Thus it will be seen that when the trip engages the track apparatus the former will be thrown about its pivot so as to have locking engagement with the latch 8 and at the same time giving rectilinear motion to the rod 2 with the result that the steam pipe 6 is obstructed and the air pipe 5 opened so as to allow air to escape from the train line to the atmosphere for applying the air brake. The track apparatus comprises a pair of rods 10 and 11 each having a pivotal connection at one end with a stationary support as illustrated at 12 while the remaining end of the rod 10 is slotted as illustrated at 13, whereas the remaining end of the rod 11 is formed into a hook 14 mounted for sliding movement in the slot of the rod 10. For properly associating the hook in the slot 13 I mount in the walls of the slot a roller 15 arranged to bear upon the under surface of the rod 11 and thus it will be seen that the rods are free to slide toward each other for accommodating the movement toward each other when the rods are thrown to an inactive position. For throwing the rods to an active position and at the same time preventing lateral play of the rods, I provide a plate 16 formed with a recess 17 the walls of which straddle the rod 10. This plate is pivotally mounted as illustrated at 18 and further has a connection with a suitable link mechanism 19 that may be actuated manually or upon movement of the usual semaphore to danger position. The swinging movement of the plate 16 is limited by means of a lug 20 formed upon the rod 10. In the modified form of my invention the train carried mechanism is identical with the exception that the rod 2 actuates the handle 21 of an air valve 22 and further the rod is connected to the throttle lever 23 by means of a flexible element 24. that passes over a series of pulleys 25. This latter ar rangement of train carried mechanism has the advantage of allowing the rod 2 to as sume any position in the cab and to cut off the motive power and apply the air brakes of the train without the necessity of reconstructing any portion of the locomotive.

From the foregoing description it will be seen that upon a train entering a danger block the trip will engage either of the rods 11 depending on the direction-oftrave'l withthe result that the rod 2 is actuated which in turn actuates the device for cuttingoif the motive power and applying the air slot to be readily forced outwardly.

hat I claim is:

1. In an automatic train stop a pair of rods onehaving one of itsends pivotally. connected to a stationary support and its remaining endQformed into a hook, the other having one of its endspivoted to a station ary support and its other end recessed for the reception of said hook, a roller supporting the hook within the recess, and means acting on' one of said' rods for moving the rods about their pivot.

In-an automatic train stop a pair of rods one having one of its ends pivotally connected to a stationary support and its remaining end formed into a hook, the other having one ofits ends pivoted to a stationary support and its other end recessed for the reception of'said hook, a roller supporting the hookwithin the recess, a pivoted plate formed Wltll'itlGCQSS-ZEOD receiving one ofthe rods and means for giving movement to said-plate;

In testimony; whereof I aflix mysignature in presence of two witnesses.

HARRY WILSON.

lVitnesses N. O. LARABEE, CoRA LARABEE.

Copies of this patent may be obtained'for five cents each, byaddressing the Commissioner of Patents,

Washington, DlC-P 

